package j04jubu;

public class J1 {
    int blood;
    public static void main(String[] args) {
        int age = 8;

        class A{

        }
        //局部内部类，应该先定义，后使用
        System.out.println(new A());

        {
            class B{}
            System.out.println(new B());
        }
    }
}
